How smart is /bant/? Help a brotha out. Factor out the X. Theres supposed to be 2 values for x in this one.
The problem is to solve the length of curve from that positive x value to the other positive x value. And i cant do that without knowing the value of the two points intersectinv the positive x axis
I don't know who gave you that function but as far as manual exercises go that's actually a pretty shitty one. You can fill these values into the original and see it ends up to zero
Do your own homework.
Don't factor out x, that work work better if you had a y value here,
Use synthetic division for a sure answer till you find enough zeros of the poly to got to a quadratic. It will be something like (x-r)(x^2-bx+c)
It doesn't look like you can do any x^2=m subsisting tricky here
Not easy stuff, what class is this? Are you sure you don't have a sign wrong?
> hurr durr here come the twenty posts of people plugging this into wolframalpha
x^3 -3x^2 + 3
(ax^2 + bx + c)*(px+q)
x^3 * ap + x^2 * (aq + bp) + x^1 * (bq + cp) + x^0 * cq
ap = 1
cq = 3
aq + bp = -3
bq + cp = 0
(1/p)*q + bp = -3
b = -cp/q
(1/p)*q + (-cp/q)p = -3
(1/p)*q + (-(3/q)p/q)p = -3
(3p^3 - q^3) / (p*q^2) = 3
If you assume integer factors, p can be either 1 or -1 (because ap = 1). Regardless of which one you pick, it's obvious from the equation that you're not going to get any integer solutions. Conclusion: just use the closed form solution. Trying to factor it manually is not going to work.
Thanks for the help anon but the test was like 5 hrs ago. I couldnt leave it alone so i had to look for answers even after the test. I dunno the teacher usually gives us doable problems. That one was unexpected
>the public eductrination institution never taught me how to solve cubics
>therefore nobody actually needs to be able to solve general cubic polynomials
>this is what public eductrination victims actually believe
>finding where the function crosses the X axis
>finding where the function's derivative is 0
>this is somehow the same thing
>everyone is falling for that
Good job anon